Preventing and Repairing Techniques for the Cavitation Erosion and Sediment Wornout of Large and Medium- sized Water Pump是什么意思_Preventing and Repairing Techniques for the Cavitation Erosion and Sediment Wornout of Large and Medium- sized Water Pump在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句